131105380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{133781}}^1$

素因数の和:133804

約数の個数: 36

約数和(自身を含む): 320274108

約数和(自身を除く): 189168728

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 133781, 267562, 535124, 668905, 936467, 1337810, 1872934, 2675620, 3745868, 4682335, 6555269, 9364670, 13110538, 18729340, 26221076, 32776345, 65552690, 131105380]

約数ペア:

[(1, 131105380), (2, 65552690), (4, 32776345), (5, 26221076), (7, 18729340), (10, 13110538), (14, 9364670), (20, 6555269), (28, 4682335), (35, 3745868), (49, 2675620), (70, 1872934), (98, 1337810), (140, 936467), (196, 668905), (245, 535124), (490, 267562), (980, 133781)]